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7.0 FAULT FINDING
WARNING: DISCONNECT FROM ALL ELECTRICAL SUPPLIES BEFORE BEGINNING ANY
WORK ON THE ELECTROMAX SOLAR. FLUID CONTAINED IN THE DOMESTIC HOT WA-
TER, CENTRAL HEATING AND SOLAR CIRCUITS MAY BE VERY HOT!
The Electromax Solar should give trouble free operation, however should a problem occur,
the tables below should enable most faults to be identified with ease.
Fault Finding should be carried out by a competent person and any replacement parts used
should be authorised Heatrae Sadia Electromax Solar spare parts.
7.1 FAULT FINDING - DOMESTIC HOT WATER
FAULT
POSSIBLE CAUSE
REMEDY
No water
Mains supply switched off.
Check and open stop cock.
Strainer blocked
Turn off water supply. Remove
strainer and clean.
Cold water combination valve
is fitted incorrectly
Check and re fit as required.
No hot water
Off Peak electrical supply
switched off
Check and switch on.
Off Peak immersion thermostat
setting too low
Check and adjust setting is
required.
Off Peak immersion heater cut
out has operated
Check and reset by pushing
button.
Off Peak immersion heater has
failed
Check and replace if required.
No solar gain
Go to 7.2
No boost
Boost electrical supply
switched off
Check and switch on.
Boost immersion thermostat
setting too low
Check and adjust setting is
required.
Boost immersion heater cut out
has operated
Check and reset by pushing
button.
Boost immersion heater has
failed
Check and replace if required.
Water discharges from expan-
sion relief valve
Expansion vessel volume has
reduced.
Check pressure and re charge
if required
Cold water combination valve
not working correctly
Check pressure from valve.
If greater than 3 bar replace
pressure reducer cartridge.
Expansion valve seat dam-
aged.
Remove expansion relief valve
and check condition of seat.
Replace if necessary.
Water discharges from temper-
ature and pressure relief valve
Thermal control failure
Switch off power. DO NOT
turn off water supply. Check all
thermal controls and replace if
faulty