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10 | AQM TANKLESS ELECTRIC WATER HEATERS WWW.APTANKLESS.COM
INSTALLATION
TROUBLESHOOTING
1
2
3
4
13. Spare parts
Spare Part (all AQM models) Item no.
1 Front cover 271010
2 Rear housing 271011
3 Filter screen 272884
4 Plumbing connection 272777
5 O-rings (not shown) 083043
12. Troubleshooting
E
Symptom Possible cause Solution
No hot water
despite fully
opened hot
water faucet.
No electrical power. Check the circuit breaker and check
voltage at the wiring block.
The activation ow rate needed
to turn on the heating element
has not been reached.
Clean lter screen.
Safety cut out tripped – turn circuit breakers o
– open Hot Valve to release pres-
sure from the unit
– reset safety pressure cut out
E
– turn circuit breakers on
Safety pressure cut out
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