Swift Motorhome Owners Service Manual page 98

SYMPTOM
Gas operation
When switching on, the
heater does not operate.
When switching on, the
heater does not operate and
the red lamp lights up after
approx. 30 secs.
Heater operates for a
prolonged time and then the
red lamp lights up.
Electrical operation
When switching on, the
heater does not operate.
Water supply
Water drips from the safety/
drain valve.
When opening the cold water
tap, hot water tap comes out.
If fault persists please contact the nearest Truma Service (see Truma Service Booklet or
www.truma.com).
T R U MA FA U LT F INDING
CAUSE
• No 12 V supply voltage.
• Window open.
• Cowl cover fitted.
• No gas supply.
• Incorrect gas pressure.
• Air in the gas supply.
• Over temperature
thermostat operated.
• No 230 V supply
voltage.
• Over temperature
thermostat operated.
• Too slow warm-up in
position 850 W
• Water pressure to high.
• Hot water flows back
through the cold water
supply.
RECTIFICATION
• Check the power supply
(operation voltage min. 10.5 V).
• Check the water heater fuse
(refer to mainanance "Fuses").
• Close any windows above the
cowl.
• Remove cowl cover and / or
clear any obstruction.
• Check gas valves and gas
bottle.
• Check gas valves and gas
bottle.
• To unlock (and purge air),
switch off the appliance, wait 5
minutes, and switch on again.
• Check water content, refill if
required (close drain valve).
• To unlock, switch off the
appliance, wait 5 minutes, and
switch on again.
• Connect the motorhome to
the site supply and / or check
residual current circuit breaker.
• Check water content, refill if
required (close drain valve).
• The electrical heating element
is fitted with an excess
temperature cut-out. In event of
a fault, switch off at the control
panel, wait 10 minutes, then
switch on again.
• Please contact the Truma
Service.
• Check water pressure (max. 2.8
bar), use a pressure reducer
when connected to central
water supply.
• Fit a no-return valve in the
cold water supply (refer to
installation instructions "Water
connection").
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