Section 10. Professional Maintenance And Service; General Information; Natural Draft Combustion System; Heater Components And Their Operation - Jandy LJ Installation And Operation Manual

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SERVICE CODE CAUSE
FL 5
1. Brown-out Condition
(brown-out)
FL 6
1. Power Module Failure
(24V signal to gas
valve)
FL 7
1. Remote Operation Circuit
(remote operation
circuit)
SECTION 10.
Professional Maintenance and
Service

10.1.General Information

A. Incoming voltage is too low to
safely operate heater.
B. Heater supply voltage is 115V
but power conversion plug is
plugged in on 230V side.
A. 24V signal is not being sent to
energize the gas valve.
A. Remote control switch circuit is
open. (Controller is not in remote
control mode)
B. Remote control switch circuit is
not open.
REMEDY
A. No Service Required. Heater will automatically
reset itself once proper voltage is restored. If error
persists, Refer to qualified personnel.
B. Reverse power conversion plug.
A. Replace power module board.
Refer to qualified personnel.
A. Identify and correct loose connections.
Refer to qualified personnel.
B. Replace power module board.
Refer to qualified personnel.
10.2.Natural-Draft Combustion System
10.3.Heater Components and Their
Operation
Gas valve / Regulator
positive pressure regulator