Hot water systems · Priority
5 000 Litre Geyser Not Heating
A large storage geyser is not reaching temperature or recovers far too slowly.
This fault is normally treated as priority work because the plant is still running but is damaging itself or wasting energy while it does.
Where a site runs on borehole water, hardness and iron content shorten service intervals considerably and are worth testing before setting a maintenance plan.
- Equipment
- Hot water systems
- Priority
- Priority
- Call
- 069 268 0988
What we find
Likely causes
- Part of the element bank failed
- Contactor or timer keeping elements off-line
- Load shedding control limiting heating windows
- Thermostat or probe misreading
- Heat source coil scaled or air-locked
Test sequence
How we diagnose it
- Current draw per element circuit
- Contactor and timer function test
- Probe calibration against a reference
- Coil delta-T measurement
Repair route
Services that resolve this fault
Hot Water Geyser Repairs
Element, thermostat, valve and leak repairs on electric geysers.
5 000 Litre Hot Water Geyser Repairs
Large-volume storage geyser repairs, elements, thermostats and stratification.
Industrial Hot Water Systems
Design, repair and optimisation of bulk hot water plant.
Calorifier Repairs
Steam and hot water calorifier coil, control valve and tank repairs.
Hot Water Storage Tank Maintenance
Descaling, anode replacement and integrity checks on storage vessels.
Emergency Breakdown Service
Priority attendance for total hot water or steam loss.
Coverage
Attendance by area
- 5 000 Litre Geyser Not Heating Johannesburg
- 5 000 Litre Geyser Not Heating Sandton
- 5 000 Litre Geyser Not Heating Randburg
- 5 000 Litre Geyser Not Heating Rosebank
- 5 000 Litre Geyser Not Heating Midrand
- 5 000 Litre Geyser Not Heating Fourways
- 5 000 Litre Geyser Not Heating Bryanston
- 5 000 Litre Geyser Not Heating Morningside
- 5 000 Litre Geyser Not Heating Bedfordview
- 5 000 Litre Geyser Not Heating Germiston
- 5 000 Litre Geyser Not Heating Boksburg
- 5 000 Litre Geyser Not Heating Benoni
- 5 000 Litre Geyser Not Heating Kempton Park
- 5 000 Litre Geyser Not Heating Edenvale
- 5 000 Litre Geyser Not Heating Alberton
- 5 000 Litre Geyser Not Heating Springs
- 5 000 Litre Geyser Not Heating Brakpan
- 5 000 Litre Geyser Not Heating Roodepoort
- 5 000 Litre Geyser Not Heating Krugersdorp
- 5 000 Litre Geyser Not Heating Randfontein
- 5 000 Litre Geyser Not Heating Florida
- 5 000 Litre Geyser Not Heating Northcliff
- 5 000 Litre Geyser Not Heating Rivonia
- 5 000 Litre Geyser Not Heating Woodmead
- 5 000 Litre Geyser Not Heating Sunninghill
- 5 000 Litre Geyser Not Heating Kyalami
- 5 000 Litre Geyser Not Heating Centurion
- 5 000 Litre Geyser Not Heating Midstream
- 5 000 Litre Geyser Not Heating Irene
- 5 000 Litre Geyser Not Heating Lanseria
- 5 000 Litre Geyser Not Heating Pretoria
- 5 000 Litre Geyser Not Heating Pretoria East
- 5 000 Litre Geyser Not Heating Pretoria North
- 5 000 Litre Geyser Not Heating Rosslyn
- 5 000 Litre Geyser Not Heating Silverton
- 5 000 Litre Geyser Not Heating Centurion Highveld
- 5 000 Litre Geyser Not Heating Wynberg
- 5 000 Litre Geyser Not Heating Isando
- 5 000 Litre Geyser Not Heating Jet Park
- 5 000 Litre Geyser Not Heating Modderfontein
- 5 000 Litre Geyser Not Heating Honeydew
- 5 000 Litre Geyser Not Heating Ruimsig
- 5 000 Litre Geyser Not Heating Melville
- 5 000 Litre Geyser Not Heating Parktown
- 5 000 Litre Geyser Not Heating Braamfontein
- 5 000 Litre Geyser Not Heating Soweto
- 5 000 Litre Geyser Not Heating Lenasia
- 5 000 Litre Geyser Not Heating Roodepoort West
- 5 000 Litre Geyser Not Heating Sandown
- 5 000 Litre Geyser Not Heating Illovo
- 5 000 Litre Geyser Not Heating Hyde Park
- 5 000 Litre Geyser Not Heating Douglasdale
- 5 000 Litre Geyser Not Heating Greenstone
- 5 000 Litre Geyser Not Heating Wadeville
- 5 000 Litre Geyser Not Heating Nigel
- 5 000 Litre Geyser Not Heating Vereeniging
- 5 000 Litre Geyser Not Heating Meyerton
- 5 000 Litre Geyser Not Heating Sebokeng
- 5 000 Litre Geyser Not Heating Tembisa
- 5 000 Litre Geyser Not Heating Alexandra
- 5 000 Litre Geyser Not Heating Bryanston East
- 5 000 Litre Geyser Not Heating Bryanston West
- 5 000 Litre Geyser Not Heating Bryanston Ext 3
- 5 000 Litre Geyser Not Heating Bryanston Ext 7
- 5 000 Litre Geyser Not Heating Bryanston Ext 8
- 5 000 Litre Geyser Not Heating Bryanston Ext 11
- 5 000 Litre Geyser Not Heating Bryanston Ext 15
- 5 000 Litre Geyser Not Heating Morningside Ext
- 5 000 Litre Geyser Not Heating Morningside Manor
- 5 000 Litre Geyser Not Heating Morningside Ext 40
- 5 000 Litre Geyser Not Heating Morningside Hills
- 5 000 Litre Geyser Not Heating River Club
- 5 000 Litre Geyser Not Heating River Club Estate
- 5 000 Litre Geyser Not Heating Sandown Ext
- 5 000 Litre Geyser Not Heating Strathavon
- 5 000 Litre Geyser Not Heating Illovo Ext
- 5 000 Litre Geyser Not Heating Inanda
- 5 000 Litre Geyser Not Heating Inanda Ridge
- 5 000 Litre Geyser Not Heating Atholl
- 5 000 Litre Geyser Not Heating Atholl Gardens
- 5 000 Litre Geyser Not Heating Atholl Ext
- 5 000 Litre Geyser Not Heating Wierda Valley
- 5 000 Litre Geyser Not Heating Wierda Valley Ext
- 5 000 Litre Geyser Not Heating Parkmore
- 5 000 Litre Geyser Not Heating Parkmore Ext
- 5 000 Litre Geyser Not Heating Hurlingham
- 5 000 Litre Geyser Not Heating Hurlingham Estate
- 5 000 Litre Geyser Not Heating Hurlingham Manor
- 5 000 Litre Geyser Not Heating Hurlingham Ext
- 5 000 Litre Geyser Not Heating Benmore
- 5 000 Litre Geyser Not Heating Benmore Gardens
- 5 000 Litre Geyser Not Heating Benmore Gardens Ext
- 5 000 Litre Geyser Not Heating Duxberry
- 5 000 Litre Geyser Not Heating Duxberry Ext
- 5 000 Litre Geyser Not Heating Sunninghill Gardens
- 5 000 Litre Geyser Not Heating Sunninghill Ext
- 5 000 Litre Geyser Not Heating Rivonia Ext
- 5 000 Litre Geyser Not Heating Edenburg
- 5 000 Litre Geyser Not Heating Edenburg Ext
- 5 000 Litre Geyser Not Heating Dainfern
- 5 000 Litre Geyser Not Heating Dainfern Valley
- 5 000 Litre Geyser Not Heating Dainfern Golf Estate
- 5 000 Litre Geyser Not Heating Dainfern Ridge
- 5 000 Litre Geyser Not Heating Dainfern Valley Estate
- 5 000 Litre Geyser Not Heating Fourways Gardens
- 5 000 Litre Geyser Not Heating Fourways Gardens Estate
- 5 000 Litre Geyser Not Heating Lone Hill
- 5 000 Litre Geyser Not Heating Lone Hill East
- 5 000 Litre Geyser Not Heating Lone Hill Ext
- 5 000 Litre Geyser Not Heating Beverley
- 5 000 Litre Geyser Not Heating Beverley Gardens
- 5 000 Litre Geyser Not Heating Craigavon
- 5 000 Litre Geyser Not Heating Craigavon Ext
- 5 000 Litre Geyser Not Heating Cedar Lakes
- 5 000 Litre Geyser Not Heating Cedar Creek
- 5 000 Litre Geyser Not Heating Cedar Hills
- 5 000 Litre Geyser Not Heating Broadacres
- 5 000 Litre Geyser Not Heating Broadacres Estate
- 5 000 Litre Geyser Not Heating Broadacres Ext
- 5 000 Litre Geyser Not Heating Chartwell
- 5 000 Litre Geyser Not Heating Chartwell Country Estate
- 5 000 Litre Geyser Not Heating Chartwell North
- 5 000 Litre Geyser Not Heating Steyn City
- 5 000 Litre Geyser Not Heating Kengies
- 5 000 Litre Geyser Not Heating Norscot
- 5 000 Litre Geyser Not Heating Norscot Slopes
- 5 000 Litre Geyser Not Heating Douglasdale Ext
- 5 000 Litre Geyser Not Heating Magaliessig
- 5 000 Litre Geyser Not Heating Magaliessig Ext
- 5 000 Litre Geyser Not Heating Paulshof
- 5 000 Litre Geyser Not Heating Paulshof Ext
- 5 000 Litre Geyser Not Heating Rosebank Ext
- 5 000 Litre Geyser Not Heating Parkwood
- 5 000 Litre Geyser Not Heating Parkwood Estate
- 5 000 Litre Geyser Not Heating Saxonwold
- 5 000 Litre Geyser Not Heating Saxonwold Ext
- 5 000 Litre Geyser Not Heating Houghton Estate
- 5 000 Litre Geyser Not Heating Houghton
- 5 000 Litre Geyser Not Heating Houghton Estate Ext
- 5 000 Litre Geyser Not Heating Upper Houghton
- 5 000 Litre Geyser Not Heating Lower Houghton
- 5 000 Litre Geyser Not Heating Killarney
- 5 000 Litre Geyser Not Heating Parktown North
- 5 000 Litre Geyser Not Heating Parkview
- 5 000 Litre Geyser Not Heating Parkview North
- 5 000 Litre Geyser Not Heating Westcliff
- 5 000 Litre Geyser Not Heating Westcliff Ext
- 5 000 Litre Geyser Not Heating Dunkeld
- 5 000 Litre Geyser Not Heating Dunkeld West
- 5 000 Litre Geyser Not Heating Hyde Park Ext
- 5 000 Litre Geyser Not Heating Craighall
- 5 000 Litre Geyser Not Heating Craighall Park
- 5 000 Litre Geyser Not Heating Craighall North
- 5 000 Litre Geyser Not Heating Melrose
- 5 000 Litre Geyser Not Heating Melrose North
- 5 000 Litre Geyser Not Heating Melrose Estate
- 5 000 Litre Geyser Not Heating Melrose Arch
- 5 000 Litre Geyser Not Heating Birdhaven
- 5 000 Litre Geyser Not Heating Oaklands
- 5 000 Litre Geyser Not Heating The Gardens
- 5 000 Litre Geyser Not Heating Forest Town
- 5 000 Litre Geyser Not Heating Riviera
- 5 000 Litre Geyser Not Heating Waverley
- 5 000 Litre Geyser Not Heating Norwood
- 5 000 Litre Geyser Not Heating Orchards
- 5 000 Litre Geyser Not Heating Northcliff Ridge
- 5 000 Litre Geyser Not Heating Northcliff Ext
- 5 000 Litre Geyser Not Heating Blackheath
- 5 000 Litre Geyser Not Heating Blackheath Ext
- 5 000 Litre Geyser Not Heating Franklin Roosevelt Park
- 5 000 Litre Geyser Not Heating Fairland
- 5 000 Litre Geyser Not Heating Fairland Ext
- 5 000 Litre Geyser Not Heating Randpark
- 5 000 Litre Geyser Not Heating Randpark Ridge
- 5 000 Litre Geyser Not Heating Randpark Ext
- 5 000 Litre Geyser Not Heating Randpark Golf Estate
- 5 000 Litre Geyser Not Heating Boskruin
- 5 000 Litre Geyser Not Heating Boskruin Ext
- 5 000 Litre Geyser Not Heating Bromhof
- 5 000 Litre Geyser Not Heating Bromhof Ext
- 5 000 Litre Geyser Not Heating Robin Hills
- 5 000 Litre Geyser Not Heating Robin Hills Ext
- 5 000 Litre Geyser Not Heating Weltevreden Park
- 5 000 Litre Geyser Not Heating Weltevreden Park Ext
- 5 000 Litre Geyser Not Heating Constantia Kloof
- 5 000 Litre Geyser Not Heating Constantia Kloof Ext
- 5 000 Litre Geyser Not Heating Radiokop
- 5 000 Litre Geyser Not Heating Radiokop Ext
- 5 000 Litre Geyser Not Heating North Riding
- 5 000 Litre Geyser Not Heating Northwold
- 5 000 Litre Geyser Not Heating Northwold Ext
- 5 000 Litre Geyser Not Heating Kya Sand
- 5 000 Litre Geyser Not Heating Waterfall
- 5 000 Litre Geyser Not Heating Waterfall Country Estate
- 5 000 Litre Geyser Not Heating Waterfall Estate
- 5 000 Litre Geyser Not Heating Waterfall Valley
- 5 000 Litre Geyser Not Heating Waterfall Hills
- 5 000 Litre Geyser Not Heating Waterfall Village
- 5 000 Litre Geyser Not Heating Waterfall Ridge
- 5 000 Litre Geyser Not Heating Carlswald
- 5 000 Litre Geyser Not Heating Carlswald North
- 5 000 Litre Geyser Not Heating Carlswald Estate
- 5 000 Litre Geyser Not Heating Kyalami Estate
- 5 000 Litre Geyser Not Heating Kyalami Hills
- 5 000 Litre Geyser Not Heating Kyalami Gardens
- 5 000 Litre Geyser Not Heating Blue Hills
- 5 000 Litre Geyser Not Heating Blue Hills Estate
- 5 000 Litre Geyser Not Heating Beaulieu
- 5 000 Litre Geyser Not Heating Beaulieu Estate
- 5 000 Litre Geyser Not Heating Noordwyk
- 5 000 Litre Geyser Not Heating Noordwyk Ext
- 5 000 Litre Geyser Not Heating Crowthorne
- 5 000 Litre Geyser Not Heating Crowthorne AH
- 5 000 Litre Geyser Not Heating Glenferness
- 5 000 Litre Geyser Not Heating Glenferness AH
- 5 000 Litre Geyser Not Heating Halfway Gardens
- 5 000 Litre Geyser Not Heating Halfway House
- 5 000 Litre Geyser Not Heating Midstream Estate
- 5 000 Litre Geyser Not Heating Midstream Ridge
- 5 000 Litre Geyser Not Heating Midstream Meadows
- 5 000 Litre Geyser Not Heating Glenvista
- 5 000 Litre Geyser Not Heating Glenvista Ext
- 5 000 Litre Geyser Not Heating Glenanda
- 5 000 Litre Geyser Not Heating Glenanda Ext
- 5 000 Litre Geyser Not Heating Bassonia
- 5 000 Litre Geyser Not Heating Bassonia Estate
- 5 000 Litre Geyser Not Heating Bassonia Rock
- 5 000 Litre Geyser Not Heating Mondeor
- 5 000 Litre Geyser Not Heating Mondeor Ext
- 5 000 Litre Geyser Not Heating Mondeor Ridge
- 5 000 Litre Geyser Not Heating Mulbarton
- 5 000 Litre Geyser Not Heating Mulbarton Ext
- 5 000 Litre Geyser Not Heating Meyersdal
- 5 000 Litre Geyser Not Heating Meyersdal Eco Estate
- 5 000 Litre Geyser Not Heating Meyersdal Nature Estate
- 5 000 Litre Geyser Not Heating Meyersdal Crest
- 5 000 Litre Geyser Not Heating Meyersdal Ext
- 5 000 Litre Geyser Not Heating Winchester Hills
- 5 000 Litre Geyser Not Heating Winchester Hills Ext
- 5 000 Litre Geyser Not Heating Oakdene
- 5 000 Litre Geyser Not Heating Oakdene Ext
- 5 000 Litre Geyser Not Heating The Hill
- 5 000 Litre Geyser Not Heating The Hill Ext
Also check
Related faults
Hot Water Geyser Not Heating
No hot water at the taps although the geyser has power and water.
Commercial Hot Water System Failure
The site loses hot water during peak periods while plant appears to be running.
Low or No Hot Water Pressure
Hot water pressure is much weaker than cold, or fluctuates at the outlet.
Calorifier Not Heating
The calorifier receives steam or hot water but the stored water stays cold.
FAQs
Frequently asked questions
What causes 5 000 litre geyser not heating?
The usual causes are part of the element bank failed, contactor or timer keeping elements off-line, load shedding control limiting heating windows, thermostat or probe misreading. Which one it is can only be confirmed by measurement, not by symptom alone.
How do you diagnose it?
Current draw per element circuit; Contactor and timer function test; Probe calibration against a reference; Coil delta-T measurement. The readings are recorded so the repair decision is based on data.
Can I keep using the system in the meantime?
Usually yes, for a short period, but efficiency and component life are both being lost while the fault persists.
Where do you attend this fault?
Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.
Get 5 000 litre geyser not heating diagnosed
Priority attendance across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.