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Instruction manual ADMR 75
E01 (blocking error)
The temperature
protection at the top of
the tank has been
activated.
The temperature of the
water at the top of the
tank is > 85 °C.
None. This is a temporary message that may appear from time to
time, but will disappear automatically.
E03 (lock-out error)
Error in temperature
sensor T
1
at the top of
the tank.
The two temperature
sensors in the tank
detect a differential of >
10 °C over a period of
at least 60 seconds.
1. Check sensor position and wiring.
2. If necessary, reset the electronic controller. Replace the sensor
if the error persists.
To replace the necessary parts, you must contact your installation
engineer
E04 (lock-out error)
Error in dummy
sensor
(2)
.
The two dummy
sensors in the tank
detect a differential of >
10 °C over a period of
at least 60 seconds.
1. Check leads from dummy 1 and dummy 2.
2. If necessary, reset the electronic controller. Replace the dummy
sensor if the error persists.
To replace the necessary parts, you must contact your installation
engineer
(1) Temperature sensor T
1
is a '2 in 1' sensor: T
1
, contains 2 NTCs for maximum thermostat and safety thermostat protection.
(2) The flue gas sensor comprises flue gas sensor 1 and flue gas sensor 2.
Symptom Cause Solution Remark
75


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