Ferroli optimax he38c fault code f37

Joined
19 Jan 2008
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Liverpool
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Today i fitted a pcb and an diverter vavle to a optimax he 38 c when i come to switch it on and fire it up f37 is on the display. f37 is system pressure to low but it was at 1.5 bar any suggestions anyone
 
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just a switch C NO & NC you would get continuity between C NO if there is 1bar in the boiler, but if there is 1 bar in the blr an continuity between C NC then its fooked

this is a standsrd Low wtr pressure switch.
 
Check the perameters in the pcb u might find it thinks it has pressure switch rather than sensor happens all the time
 
hello michael, are you new to boiler repairs? I suggest you attend a fault finding course an teach yourself electrics & how to use a multi meter


;)
 

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