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www.ehs-heating.com
E6
Neutral wires not well
connected
No heating
1. Check whether the neutral wire of the
machine has false connection.
2. Check whether the neutral wire end of the
leakage protection switch is damaged.
3. Measure whether the voltage between the
neutral wire and the live wire is 220 v.
4.
Contact the customer after sales to replace
the motherboard.
External leakage protector
tripped
Display screen does NOT light
up.
1.
Check whether the leakage protector is
damaged and replace it.
2.
Check whether the heater has leakage and
change it.
3.
Check whether there is leakage situation in
the external input power wires and repair the
line.
Dry burning temperature
controller trip
Display screen does NOT light
up.
1.
Check whether the temperature controller
trips. If it trips, press the reset button.
2.
Check whether the waterway is blocked. Clean
and unblock the pipeline.
3.
Check the flow of water pump.
No heating
Equipment temperature does
NOT rise.
1.
Water temperature setting too low.
2. Return temperature setting too high.
3. Timing and opening
4. Indoor temperature control setting too low.
10.
All functions
10.1.
Summer/Standby mode (hot water only)
：
Press the
On/Off Key to illuminate the Summer Mode
