Potterton iHE 100/300, Installation And Servicing Instructions

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iHE 35
Table 3.0
10 Outside sensor, error Check connections and / or replace faulty sensor
(B9)
20 Boiler temperature 1, sensor error Check connections and / or replace faulty sensor (B2)
26 Common fl ow temperature, sensor error Check connections and / or replace faulty sensor (B10)
28 Flue gas temperature, sensor error Check connections and / or replace faulty sensor (B8)
30 Flow temperature 1, sensor error Check connections and / or replace faulty sensor (B1)
32 Flow temperature 2, sensor error Check connections and / or replace faulty sensor (B12)
40 Return temperature 1, sensor error Check connections and / or replace faulty sensor (B7)
50 DHW temperature 1, sensor error Check connections and / or replace faulty sensor (B3)
60 Room temperature 1, sensor error Check connections and / or replace faulty sensor (R1)
65 Room temperature 2, sensor error Check connections and / or replace faulty sensor (R2)
68 Room temperature 3, sensor error Check connections and / or replace faulty sensor (R3)
70 Stoarge tank temperature 1, sensor error Check connections and / or replace faulty sensor (B4)
83 LPB collision Duplicate LPB address - Check all PCBs function 6600
84 BSB address collision Room unit incorrectly con fi gured - see function 40
98 Extension module 1, error Module 1 con fi guration error - Check parameters
99 Extension module 2, error Module 2 con fi guration error - Check parameters
100 2 Clock time masters Only PCB no 1 is set as time master - see Function 6640
110 STB lockout Check connector X18a and all fl ow & return sensors
111 Shutdown limit thermostat Heat exchanger temperatures have been exceeded
121 Flow temperature heating circuit 1 not reached Htg Circuit 1, time temp parameter not reached
122 Flow temperature heating circuit 2 not reached Htg Circuit 2, time temp parameter not reached
126 DHW charging temperature not reached Check operation and heat up times for DHW
127 DHW legionella temperature not reached Check operation of appliance
128 Loss of fl ame during operation Ionisation current lost after successful ignition
130 Flue gas temp too high Heat Engine is overheating. Check causes of high temps
133 Safety time exceeded Ignition unsuccessful after 5 attempts
151 BMU Internal error Check polarity is not reversed to the appliance
152 Parameterization error Incorrect / Con fl icting parameters input.
FAULT CODES
Code Fault Description Notes