Fix Fault Honeywell

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We have 221 questions about fixing 'honeywell'

potterton netaheat 10-16 heating works but hot water doesn't?

Hi The hot water has stopped working on our our Potterton Netaheat 10-16. The central heating still works fine. The Honeywell controller still seems to be working, the red LED comes on and a click ... more


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glowworm boiler honeywell thermostat?

why do i need to turn my thermostat up to 20 degrees to start the boiler runing why cant i have run it at a lower temperature


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how to rewire from scratch my central heating system?

we have a baxi bermuda back boiler central heating system that is twenty years old now. we have replaced the pump, and now want to replace the programmer, cylinder thermostat, three port valve and roo ... more


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Flame failure device keeps operating?

I have a Glow-worm Space-saver 40B MK 11 boiler. As the pilot wouldn't stay lit, I have recently (last month) replaced the thermocouple; thermocouple re-router; pilot burner and eventually the gas ... more


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Honeywell 3 way valve?

I have a Honeywell 3 way valve on between my HW & CH. It is wired to a Potterton Controller. Currently the CH comes on when the HW is on with no control. Can anyone advise a procedure for checking t ... more


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Central heating problem - can you please help?

Just back from a weeks holiday, switched heating on but it's not working, water was left to come on for an hour twice a day and there seems to be no problem with that. For a few weeks, the radiator i ... more


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Where can I get manufacturers instructions for my boiler?

Is it possible to download manufacturers instructions for the Honeywell, Glowworm Swift Flow 80 Boiler? Anyone have any good links to reccommend please? Need to find out exact clearance requirem ... more


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how can i fix my motorised valve on boiler?

the red (lead) wire on my honeywell v4043h1056 motorised valve is loose.the heating does not come on anymore until the wire is moved.when this happens the heating comes on for a limited time sometimes ... more


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vokera mynute 14se?

my boiler fire's up when not calling for heat or hot water and my pump is always runing, engineer has changed hot water zone valve make honeywell but still no joy. Can anyone help .


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Replacement controls for Myson Envoy (1977) fan convectors?

Where can I get replacement controls for a Myson Envoy(1977) fan convector? I recently moved into a house that has a SIME boiler under the floor and several Myson fan convectors on the walls. Half ... more


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Glowworm Swiftflow 80 not heating?

7 Year old glowworm swiftflow 80 (honeywell) has recently got a bit noisy and last week, out of the blue stopped heating either when the hot water is on or when the central heating is on. It sounded ... more


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wiring stat to baxi?

diagram for connecting honeywell thermostat to a baxi combi 105e


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Why have the radiators downstairs stopped working and how can I fix them?

The radiators downstairs have stopped working. Upstairs still come on in line with my timer controller (Honeywell) but a few days ago, with no warning, all the downstairs radiators stopped coming on. ... more


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how do i wire my boiler?

how do i wire the honeywell triple aquastat controller to my boiler


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I need to service and rectify a fault my Potterton Kingfisher boiler?

Please read and help me to service my boiler. Thanks Boiler = Potterton Kingfisher Potterton No. = 559045/1084 Serial No on Fluehood = G02 014081 LR Control Unit = Honeywell, Type = V 4600 C 1029 ... more


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The pilot ignites ok,but when central heating or hot tap is used the boiler?

the pilot ignites ok,but when central heating or hot tap is used the boiler works briefly then dies out. I have a Honeywell Swift Flow 80.


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switchmaster mid valves?

how do i re wire the old switch master valve for a honeywell model. the old switchmaster valve has 6 wires and the honeywell only has five wires. will this valve work on my system or do i need a plumb ... more


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pilot light issues with 100yr old boiler?

Dont ask how, but my gas main got shut off... I have to relight every pilot light in the house to get the radiators running again because its cold! I have turned the main back on, and managed to reli ... more


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how to fix a honeywell heater?

pilot turns on but no gas to the burners


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Problem with netaheat profile 30e?

Hello, I have the above combi boiler and my problem is this. On the Honeywell control panel I can select the switch to heat the water, the boiler sparks and flame is seen. If I try it with the cent ... more


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