Recent content by strontium239

Just in case you are still interested, the thermistor was OK, called Halstead TS again it is 1 Mohm on the Best. this time they suggested the ignition board for the same symptoms. I suddenly realised, the only reason I thought the board was US was because Halstead said so and it had the funny...

Had to take the wife shopping so not much progress, oiked out new board, no sign of overheat. traced old board, pump seems to be powered via a small relay with no signs of damage, so inclined to rule that out. the Ignition board is powered directly off the Aquastat without going through any...

Its a fair point, by fine I mean goes round pumps blows no visual signs and checks out cold with a basic ohm meter. Halstead spec the fan as 40 ohms which it is. I don't have access to an LCR so am thinking of a bit of re-wiring to isolate the pump and fan each with a relay and a 2 amp fuse...

Thanks for the tip but they supply a new one of these with the PCB in a plastic box but I checked it out just in case. No joy there, as you say the ignition unit seems to be next but I was wondering if the fan is developing a short when it gets hot, hard to check for if it blows the PCB each...

I have a 6 year old Best 60 no problems till last week, suddenly stopped, diagnosed as faulty Aquastat PCB but checked fan pump and thermistor which seem ok, fitted new Aquastat hey presto hot water again for 2 days, this morning same problem. No lights, no fan, pump runs and Aquastat clicks...