Specifications

LP- 276 REV. 9.4.14

F20 Condensate cup is full

1. Check condensate lines for obstructions.

2. Check float switch in condensate reservoir.

3. Check wiring from condensate reservoir to 926 control and repair as necessary.

pp Parameters programmed Press {S4} reset for at least 1 second.

F31 Program parameter error Control must be re-programmed. If programming does not solve problem, control must be replaced.

Table 20

Figure 29

PART 12 – MAINTENANCE

In unusually dirty or dusty conditions, care must be taken to keep appliance cabinet door in place at all times. Failure to do so VOIDS

WARRANTY!

Allowing the appliance to operate with a dirty combustion chamber will hurt operation. Failure to clean the heat exchanger as needed by

the installation location could result in appliance failure, property damage, personal injury, or death. Such product failures ARE NOT

covered under warranty.

The appliance requires minimal periodic maintenance under normal conditions. However, in unusually dirty or dusty conditions, periodic

vacuuming of the cover to maintain visibility of the display and indicators is recommended.

A. MAINTENANCE PROCEDURES

Periodic maintenance should be performed once a year by a qualified service technician to assure that all equipment is operating safely

and efficiently. The owner should make necessary arrangements with a qualified heating contractor for periodic maintenance of the

heater. Installer must also inform the owner that the lack of proper care and maintenance of the heater may result in a hazardous

condition.