Gledhill Boilermate 2 Buzzing Loudly

Had to look at another common issue today with a Gledhill Boilermate 2. The customer was complaining of a loud buzzing noise coming from the airing cupboard which had woken her up and she was unable to stop.

I removed the front panel on the cylinder which houses the thermostat, electrics and PCBs. I could hear the buzzing was coming from the pump delay timer PCB. I turned off the power and replaced this little circuit board. However, when I turned the power back on the pump drive PCB began to buzz intermittently. It was not as loud as the original buzzing but annoying nonetheless. I replaced the pump drive PCB also and all is working well.

Disclaimer: The works described in this blog are a record of work undertaken and should not be taken as guaranteed to solve your problem. Work should only be carried out by persons qualified and competent to do so.