10 Instruction manual PH500H
Please keep this instruction manual for future reference
T R O U B L E S H O OT I N G
FA N D O E S N OT R U N O N A N Y S W I T C H S E T T I N G
› Check the power supply is switched ON.
› Check fuse in fused spur.
› Check the wiring connections at the fused spur.
H E AT E R D O E S N OT S W I T C H O N W H E N C E N T R A L
› Check the top switch is set to “0” and the bottom switch is heating is on is set to “I”
or “II”.
› Check the unit is not air locked. Use bleed valve in front of the unit to release any air.
› Balance the central heating system if installed on same circuit as panel radiators and
increase the circulating pump speed if required.
› Increase the boiler temperature.
