Navien NP-180, Руководство по обслуживанию

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Versi
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n 2.0
Reason
Error
Code
Self-diagnostic / Action Reset
E021 Cold water inlet: Thermistor 1–open
Cold water inlet: Thermistor 1 -short
1. Check Thermistor.
2. Check for loose connection
3. Replace Thermistor.
Abnormal activity of the
air pressure sensor
1. Check Thermistor.
2. Check for short or water in connection
3. Replace Thermistor.
E022
Automatic
Automatic
Automatic
Exhaust Overheat: exhaust
high limit switch shuts down
the unit when the flue
temperatures exceed 149°F
(65°C)
1. Check the vent pipe for obstructions.
2. Check and clean the air filter (part #10).
E027
Automatic
1. Turn OFF the system for at least 30 minutes
then restarts.
2. Clean the inlet water strainer (part #62)
3. Check the water adjustment valve (part #16)
4. Check the heat exchanger; flush with a
cleaning solution
E030
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Cold water inlet: Thermistor 2 - Open
1. Check wire connection at computer board
2. Check wire connection black wire white
connection
3. Check dip switches
4. Loose wire at connection
E032
Abnormal the Water Adjustment
Valve
Abnormal activity of the gas
pressure sensor
Abnormal activity of the gas
pressure sensor
1. Check to make sure wire connections are
secure
2. Check black and white connection for water
3. Check inlet Thermistor for secure installation
4. Check dip switches
E033
Communication failure
Water Leak Inside unit
1. Check the water Adjustment valve.
1. Measure gas pressure drop
2. Check hose connection
3. Replace GPS.
E034
Manual
Manual
Abnormal Circulation PUMP
1. Contact to Navien tech. dept.
1. Close cold water main.
2. Replace leaking parts.
1. Check the circulation PUMP.
2. Check the Flow sensor.
3. Check the Cold water main.
E035
E036
Abnormal the Flow Sensor
Hot water outlet : Thermistor 2- open
Hot water outlet : Thermistor 2- open
1. Check the flow sensor.
1. Check the Thermistor.
2. Replace the Thermistor.
E037
E038
E039
Manual
Manual
Abnormal cascade connection
Abnormal Thermistors connection
Abnormal the Mixing Valve
Abnormal LP Gas Pressure
1. Check the Thermistor.
2. Replace the Thermistor.
1. Check Model type
(If residential and commercial are installed
together : temperature cannot be above 140°F).
1. Check Thermistors connection.
1. Check the Mixing valve
2. Check mixing valve transformer
1. Check the LP Gas.
2. Fill the LP Gas.
E041
E042
E043
E044
E045
E048