Question about Honeywell Water Heaters
Boiler is c.20 years old; recently replaced pcb after fan was failing to trigger ignition sequence. Boiler worked fine for a few months until Honeywell programmer (fairly recently bought)started to stutter and fail to trigger the boiler to come on automatically. Manually fiddled with the power switch lead to programmer to get the boiler to come on by repeatedly switching it on/off but after a while that dodge failed and programmer began to flicker on/off constantly. Read somewhere it could be a faulty diverter valve or an electronic switch on the boiler itself. I am convinced that this is definitely not a major problem but just an electronic component that needs replacing and there is still life in the old boiler yet. I would be most grateful if you could give me some leads to help solving the problem. Thanks, Adrian
it sounds like the problem may be in the boiler and not the controller itself. Do you kno which is are the two wores that are the r-w for the thermostat take and purt them together and see if the boiler stays on or shuts off like it does with the thermostat. If it does then replace the reciever. If it doesn't then you have another problem. Good Luck
Posted on Jan 07, 2009
what size of gas line is going into boiler and water heater? is it black iron ? natural gas or propane? have you checked gas pressure at water heater and furnace ? if they work fine individually then you have a problem with incoming gas pressure. Call gas company and ask them if they would come out and check gas pressure.
Posted on Feb 09, 2009
vailant boilers are one of the best on the market and should last you more than 6 years depending on installation and servicing.
the engineer you had should not have replaced the diverter valve if the boiler was firing up when the taps are opened. if you was getting luke warm water with the boiler alight it is a classic symptom of a blocked plate heat exchanger on the central heating side.
a new heat exchanger can cost around £100 depending on the age and model of the boiler.alteranatively it could be descaled but may clogg again. it would be a good ideal to fit a magna clean filter on the system to help prevent further debris if you have a dirty system .if you don't trust your engineer i suggest you ask another. find out if he is registered first and don't pay until you are satisfied with the work. if you are asking the same engineer back try and get a discount off the work as he has failed to rectifiy the original fault and fitted the wrong part due to wrong diagnostics. if he is registered you can complain to the governing body ie corgi or gas safe register.
Posted on Mar 30, 2009
water must be set at 3lts a min ,check diaphragm valve move when hot tap is on, check microswitch ,best of luck
Posted on Oct 12, 2009
Tips for a great answer:
Aug 01, 2016 | Water Heaters
May 26, 2012 | Water Heaters
Nov 18, 2010 | Bosch Water Heaters
Oct 13, 2009 | Water Heaters
Sep 28, 2009 | Water Heaters
Aug 23, 2009 | Protech Systems FasNSeal FSWMKE4 4" Vent...
Feb 03, 2009 | Water Heaters
Aug 07, 2016 | Honeywell Ct87n "the Round" Heat/cool...
90 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: