UNEXPLAINED SHUT-DOWN OF THE APPLIANCE
This appliance contains an Energy Cut-Off Device which reacts when the water in the heat
exchanger exceeds the anticipated temperature limit. Although it is intended to guard
against failure of the automatic gas valve, it may be triggered inadvertently by other causes,
especially during the summer months when the inlet water temperature is unusually high.
However, if the energy cut-oft device reacts to a slowly closing automatic gas valve, the
shut down of the appliance may be accompanied by noises from the heat exchanger and
pipework. The pressure relief valve located on top of the water governor may also have
vented water into the case. In this situation it is possible that STEAM will come out of the
hot water tap when turned on.
IMPORTANT NOTE
To ensure continued safe operation, we recommend that if the pressure relief valve
has operated, it should be replaced immediately
page 21
8. SHORT SPARE PARTS LIST - Page 22
SYMPTOM
POSSIBLE CAUSE
SOLUTION
SMELL OF
COMBUSTION
PRODUCTS
1. Faulty case or terminal seal.
1. Check that the outer case
seal - Part No 10/17501 and
terminal seal - Part No
31/12299 are in good
condition, replace if
necessary. Ensure the outer
case is correctly positioned
2. Failure to follow Instructions with
regards to openable windows and
doors.
2. Re-site the appliance.
SYMPTOM
POSSIBLE CAUSE
SOLUTION
Excessive resistance of push rod.
Exchange push rod and seals. Lubricate with
Dow Corning lll silicone grease and ensure
free movement.
Page 33 of 35
Mersey Super - Installation & Service Instructions
09/12/2009
file://P:\System\DATA\Dx\DS1\installation\2551\I24-2551\I24-2551.htm
