Ecoplus ZR9W-250T Instruction Manual page 19

.CONTROLLER INTRODUCTION
Solution for " PP09 " listed below:
1.3 Fault query
Solution of "PP09"
1. Bad connection between temperature sensor
lead wire and "SEN1" terminal on PCB board
(short circuit or open circuit), may cause PP9.
Please ensure the entire temperature sensor
lead wire in good condition and well fixed on
PCB board " SEN1" terminal.
Solution for " PP11" listed below:
1.3 Fault query
Solution of "PP11"
1. Not enough water inside tank(for split heat
pump, low water flow volume) may cause
PP11. Please fill enough water inside tank,
For split heat pump, ensure no block on
water circuit, remove additional air in water
circuit.
1.3 Fault query
Solution of "PP11"
3. Compressor exhaust air temp sensor
malfunction may cause PP11. Please check
the sensor and replace it if necessary.
1.3 Fault query
Solution of "PP11"
5. Heat pump internal refrigerant gas not
enough may cause PP11. Please check all
the refrigerant gas pipes and welding joints
to ensure no leakage for gas circuit.Seal the
leakage dot in time,vacuum the gas circuit
and infill same refrigerant gas amount
marked on rating label.
BACK
1.3 Fault query
Solution of "PP09"
2. Internal damage on temperature sensor may
cause PP9. Please replace with new sensor .
If after trying all above solution, PP9 still
shows, please replace with a new PCB board.
BACK
1.3 Fault query
Solution of "PP11"
2. Water temp Higer than 60 C or ambient
temp Higher than 35 C , may cause PP11.
Please lower the target water temp Or
replace with boiler for higher temp hot
water heating.
BACK
1.3 Fault query
BACK
1.3 Fault query
Solution of "PP11"
If after trying all above solution, PP11 still
shows, please replace with a new PCB board.
16
BACK
BACK
o
o
BACK
BACK