Troubleshooting - Truma AquaGo basic Operating Instructions Manual

Troubleshooting

Problem Potential cause
No hot water Gas supply is turned off or
at the faucet interrupted.
LP gas tank is empty.
The Truma AquaGo™ instant water
heater is switched off.
Fresh water supply is turned off.
Power supply to the Truma
AquaGo™ instant water heater is
switched off.
Defect in the Truma AquaGo™ in-
stant water heater.
Hot water Gas flow to the Truma AquaGo™
tempera- instant water heater is too low (gas
ture too low inlet pressure < 10.5" wc).
(<120 °F
/ 49 °C)
Volume flow of hot water is too
high and/or the temperature of
cold water reaching the Truma
AquaGo™ instant water heater is
too low.
Too much lime deposits in the Tru-
ma AquaGo™ instant water heater.
Water escap- Water pressure in water system too
ing at pres- high.
sure relief
valve
Water cannot expand in the water
system.
Lime or dirt under the pressure re-
lief valve seat.
Water escap- Lime or dirt under the O-ring seats. Clean the O-rings and their corresponding
ing at the wa-
ter inlet filter
14
Resolution
Check and/or turn on gas supply.
Refill/replace the gas tank.
Switch on the Truma AquaGo™ instant wa-
ter heater according to instructions (refer to
"Operating procedures" on page 8).
Open the fresh water supply.
Switch on power supply to the
Truma AquaGo™ instant water heater.
LED 2 blinks red (refer to "APPENDIX A –
Error Codes" on page 24) and contact a
certified service technician if necessary.
Consult vehicle documentation to determine
if gas supply is capable of providing
the necessary volume of gas for the
Truma AquaGo™ instant water heater
(refer to "AquaGo™ technical
data" on page 11).
Turn down hot water at the faucet or in the
shower in order to reduce volume flow.
Potentially retrofit a volume flow throt-
tle into the water system. This shall be
performed only by a certified service
technician.
Have the Truma AquaGo™ instant water
heater decalcified by a certified service
technician.
Adjust the water pump pressure. If the wa-
ter pump pressure is still too high, replace
the water pump.
Install a pressure limiter at the fresh water
supply. This shall be performed only by a
certified service technician.
Contact the vehicle manufacturer about ret-
rofitting a pressure compensation element.
Slowly raise the test lever (Fig. 3 – 4a) to
flush the water system and attempt to force
dirt or foreign matter off of the pressure re-
lief valve seat.
Replace pressure relief valve. This shall
be performed only by a certified service
technician.
sealing surfaces with clean water.