MDC XT16HR EAST WEST 2021, Руководство пользователя

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67
Error
Code
Flash Code
s = short = 0
l = long = 1
Error Description
28 s,s,s,l,l,l,s,s Too low gas pressure. Gas supply (in vehicle) to the appliance insufficient.
29 s,s,s,l,l,l,s,l Too high heat power required. You are trying to use more hot water than the appliance can supply.
30 s,s,s,l,l,l,l,s Risk of freezing. Temperature in the appliance below 27 °F (3 °C).
31 s,s,s,l,l,l,l,l Decalcification finished. The WOS opened at a water temperature of over 185 °F (85 °C).
32 s,s,l,s,s,s,s Current too low. Current in the antifreeze kit too low (e.g. cable break).
33 s,s,l,s,s,s,s,l Current too high. Current in the antifreeze kit too high (e.g. short circuit).
Problem Potential Cause Resolution
No hot water at the
faucet
Gas supply is turned off or in-
ter-rupted.
Check and/or turn on gas supply.
Gas tank is empty. Refill/replace the gas tank.
The appliance is switched off.
Switch on the appliance according to instructions (refer to “Operating proce¬dures” on
page 55).
Fresh water supply is turned off. Open the fresh water supply.
Power supply to the appliance is
switched off.
Switch on power supply to the appliance.
Defect in the appliance.
LED 2 flashes red (refer to “APPENDIX A – Error Codes” on page 68) and contact a certi -
fied service technician if necessary.
Boiling noises
Too much lime scale in the AquaGo
instant water heater.
The appliance must be decalcified (refer to “Decalcification” on page 62).
Hot water tem-perature
too low.
Gas flow to the appliance is too low
(gas inlet pressure < 10.5 in. wc).
Consult vehicle documentation to determine if the gas supply is ca¬pable of providing the
necessary volume of gas for the appliance.
Contact a service technician to verify that the gas installation is suitable.
Volume flow of hot water is too
high and/or the temperature of cold
wa-ter reaching the appliance is
too low.
Turn down hot water at the faucet or in the shower in order to reduce flow rate.
Potentially retrofit a flow rate throttle in the water system. This must be per¬formed by a
certified service technician.
Too much lime scale in the ap-
pli-ance.
The appliance must be decalcified (refer to “Decalcification” on page 62).
Water escaping at pres-
sure relief valve.
Water pressure in water system
too high.
Adjust the water pump pressure to a maximum of 65 psi (4.5 bar).
If the water system is connected to a cen¬tral water supply higher than 65 psi (4.5 bar)
(rural or urban connection), a pressure reducer must be used.
Install a pressure reducer (e.g. Truma pressure reducer) at the fresh water supply.
Water cannot expand in the water
system.
Contact the vehicle manufacturer about retrofitting a pressure compensation ele-ment.
Lime or dirt under the pressure
relief valve seat.
Allow the appliance to cool and then slowly raise the test lever (Fig. 3 – 4a) to flush the
water system and attempt to force dirt or foreign matter out of the pressure relief valve
seat. Replace pressure relief valve. This must be performed by a Truma certified service
technician.
Water escaping at
water inlet filter
Lime or dirt under the O-ring seats. Clean the O-rings and their correspond¬ing sealing surfaces with clean water.
Troubleshooting
AquaGo comfort / AquaGo comfort plus
Problem Potential Cause Resolution
The yellow status LED 3 is off
al-though an oper-ating mode
was selected.
Power switch is OFF. Switch ON the appliance at the POWER switch.
Power supply to the appliance is switched off. Switch on the power supply to the appli¬ance.
Power supply was interrupted.
Reset by switching OFF at the con¬trol panel, waiting 2 seconds and
then switching on again.
If none of the measures in the troubleshooting chart proves successful, please contact your dealer,
the Truma Service Center at 1-855-558-7862 or one of our authorized service partners.