HTP Hydra Smart Series User Manual

lp-505 Rev. 000 Rel. 015 Date 1.7.20
54
Error Code Error Code Description Possible Remedies
Er:32
Water Outlet Sensor Open or
Short
This Error Code will go away when outlet water temperature decreases.
If Error happens again:
1. Check DHW outlet temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, replace the main control.
Er:33
H/X Temperature Sensor Open
or Short
This Error Code will go away when outlet water temperature decreases.
If Error happens again:
1. Check operating temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, replace the main control.
Er:35
Exhaust Sensor Open or Short
This Error Code will go away when exhaust temperature decreases.
If Error happens again:
1. Check exhaust temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. Check exhaust vent for blockage.
4. If the problem persists, replace the main control.
Er:38
Error Appears When Control
Stores Data, but Data is not
Saved
Press the Power button to clear the Error Code.
Replace the main control.
Er:39
Flame Detected after Exiting a
Flame On Condition
This Error Code will go away when the false ame condition is remedied.
If Error happens again:
1. Check the water heater cover. Ensure it is secure. Flame detection sensor can detect an external light
source.
2. Check ame detection sensor. Ensure connections are secure. Normal operating settings are more than
2.5DC before ignition, less than 2.5DC after ignition.
3. If the problem persists, replace the main control.
Er:41
Fan Speed too high with
ame on
The Error Code will go away unless it occurs ve (5) times in ten (10) minutes. Press the Power button to
clear the Error Code.
If Error happens again:
1. Check the vent connections for blockages.
2. Check the burner assembly.
3. Check fan operation. If fan appears to be operating normally but RPMs are too low or too high, replace
the fan.
4. If the problem persists, replace the main control.
Er:42
Flue APS - Closed is Normal,
Open is Fault
(Condensate Drain Trap)
Press the Power button to clear the Error Code.
1. Check FLUE APS and main controller connections. Ensure all are secure.
2. Check FLUE APS resistance. If resistance is zero, replace the switch.
3. Check FLUE APS hose. Ensure it is connected and in good condition.
4. Check exhaust vent for blockages.
5. If the problem persists, replace the main control.
Er:43
Burner overheat switch open
Press the Power button to clear the Error Code.
If Error happens again:
1. Check burner overheat switch connections. Ensure connections are secure.
2. Check switch resistance. If resistance is not zero, replace the switch.
3. If the problem persists, replace the main control.
Er:45
Water Leak
(150 Models ONLY)
1. Turn power o to water heater.
2. Valve o the water heater to isolate it from the system.
3. Call a qualied installer / service technician to diagnose and repair the source of the leak.
Er:61
Fan Speed Feedback Signal
Abnormal
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the connections to the fan. Ensure all are secure.
2. If the fan does not rotate during the ignition sequence, check for 120V power at the fan connection. If
120V power is present at the control, replace the fan. If the blower does not have 120V power, check power
at the control. If 120V power is not present at the control, replace the control.
3. If the problem persists, replace the main control.
Er:65
Supply Water Valve Error
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Check wiring connections to supply water valve. Ensure all are secure.
3. Replace supply water valve.
4. If the problem persists, replace the main control.
Er:66
Mixing Valve Error
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Check wiring connections to mixing valve. Ensure all are secure.
3. Replace mixing valve.
4. If the problem persists, replace the main control.

HTP Hydra Smart Series Specifications

General

Brand	HTP
Model	Hydra Smart Series
Category	Water Heater
Language	English