Troubleshooting Guide - Dimplex DFI400LH Service Manual

TROUBLESHOOTING GUIDE

PROBLEM
Appearance
Cassette does not turn on in
Manual Mode
Cassette does not turn on in Re-
mote Mode
Mist is not coming out
Mist is not coming out and the red
light by the transducer is not on
Mist is coming out fast
Mist does not appear to be com-
ing out evenly
Heater
Heater is not turning off
Heater is not turning on
Heater is turning off after a couple
of minutes of operation
Heater emits an odor
10
CAUSE
Improper operation
No incoming power from the electrical wall
socket
Power adapter set not connected properly
Defective Remote Control Receiver
Improper operation
Remote Control not working
Defective Remote Control Receiver
Defective IR Remote Control Sensor
Not enough water in the unit
Water in unit is too cold
If using distilled or reverse osmosis water, unit
will not produce a consistent mist
Check that the fan is operating correctly
Cord is located over emitter on transducer
Defective Transducer
The cord from the power board is not working
Filter is missing off of Fan Housing
Unit is not level
Media is blocking air flow
A light bulb is burnt out
Improper Operation
Defective Thermostat
Improper Operation
Defective Thermostat
Heater has blown fuse in cord
Build up of dirt/dust in Heater Assembly
Defective Heater Assembly
Normal Operation
Defective Heater Assembly
SOLUTION
Refer to Operation Section
Check Fuse/Breaker Panel
Refer to installation instructions for wiring
instructions.
Replace Remote Control Receiver.
Refer to Operation Section
Install new battery into the Remote Control.
Replace Remote Control Receiver.
Replace the IR Sensor
Fill unit with water
Allow water to warm to room temperature.
Add 1/8 tsp of table salt to water reservoir to
introduce electrolytes, only repeat when mist is
not being produced correctly
Replace fan assembly
Ensure that the air filter is clean and dry
Relocate cord so that mist is free to rise off of
transducer.
Replace Transducer
Ensure that the cord is not pinched.
Ensure that the cord is fully inserted into the
connection on the power board.
Replace Fan Filter
Level unit
Rearrange media
Replace light bulb
Refer to Operation Section
Replace Thermostat
Refer to Operation Section
Replace Thermostat
Replace Fuse
Ensure that exterior intake louvers and housing
cavity are free of dirt/dust.
Replace Heater Assembly
Normal operation is when the heater emits an
odor for a brief period after the heater is initially
turned on. The heater is burning off any dust
accumulated during manufacturing or operation.
Replace Heater Assembly
www.dimplex.com