Errors

- select code -
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
3
4
5
6
7
8
9

Boiler type Alpine ALP700C

Error code 3

Cause:

Boiler Safety Limit Open
Boiler Safety Limit, or External Limit wired to terminals J5-1 OPEN:
• Jumper for External Limit wired to terminals 11 and 12 or device connected to it open.

Solution:

• See possible causes for “Hard Lockout 4”.
• Loose wiring to limit device.
• External Limit defective or jumper not installed.
• If yellow light on LWCO is on, system is low on water.
• If neither yellow or green light is on, check LWCO harness.