6. TROUBLE SHOOTING GUIDE
FAILURE
REASON
SOLUTION
Heat pump doesn’t run
No power
Wait until the power recovers
Power switch is off
Switch on the power
The breaker is off
Check and turn on the breaker
Fan running but with
insufficient heating
Evaporator blocked
Remove the obstacles
Air outlet blocked
Remove the obstacles
3 minutes start delay
Wait patiently
Display normal, but no heating
Set temp. too low
Set proper heating temp.
3 minutes start delay
Wait patiently
DISPLAY DESCRIPTION
REASONS/SOLUTIONS
E3
Insufficicent or no water flow/
protection
Ensure water flow through circulating pump/filtration system;
1a. Ensure circulating pump is primed (independent system).
1b. Ensure water flow through filtration i.e. filter pump is primed,
check filter pressure, visible water flow (inline system).
2. Adjust flow through bypass valve in order to direct more flow to
heat pump (specific to plumbing configuration).
3. Possible blockage.
4. Check flow switch and PCB wiring (technician only).
E5
Power (voltage) supply outside
acceptable operating range
Engage electrician to confirm power supply (refer to technical
specifications).
E6
Excessive temperature
differential between inlet and
outlet water (insufficient water
flow/protection)
Ensure water flow through circulating pump/filtration system.
1a. Ensure circulating pump is primed (independent system).
1b. Ensure water flow through filtration i.e. filter pump is primed,
check filter pressure, visible water flow (inline system).
2. Adjust flow through bypass valve in order to direct more flow to
heat pump (specific to plumbing configuration).
3. Possible blockage.
Eb
Ambient temperature too high
or too low protection
Wait until air temperature returns to heat pump operating range
(refer to technical specifications).
Ed
Anti-freezing reminder
Anti-freeze mode is activated;
When water inlet temperature ≤ 2°C and air temperature ≤ 0°C,
heat pump will automatically start running in heating mode.
When water inlet temperature ≥
15°C or air temperature ≥ 1°C,
heat pump will be powered off or on standby.
ATTENTION
If above solutions don’t work, please contact your installer with detailed information and your
model number.
Heatseeker VortexE Inverter Heat Pump
Installation & User Manual
19