Daikin FTXM-V Series, Руководство по обслуживанию

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Check SiUS042113E
142 Part 6 Service Diagnosis
5.10 Discharge Pressure Check
Check No.18
5.11 Outdoor Fan System Check
Check No.19 DC motor
5.12 Main Circuit Short Check
Check No.20
Check to make sure that the voltage between (+) and (–) of the diode bridge (DB1) is about
0 V before checking
 Measure the resistance between the pins of the DB1 referring to the table below.
 If the resistance is

or less than 1 k

, short circuit occurs on the main circuit.
(R21121)
YES
YES
YES
NO
NO
NO
NO
YES
Is the air filter or
indoor/outdoor heat
exchanger dirty?
Is the
connection pipe deformed?
Is the stop valve
open?
High? Replace the compressor.
Open the stop valve.
Replace the pipe installed at
the site.
Clean the dirty air filter or
indoor/outdoor heat exchanger.
Replace the compressor.
Discharge pressure check
(R21195)
YES
NO NO
YES
O u tdoor fan system is f u nctioning.
Check the o u tdoor fan system.
Reconnect the connector.
Is
the o u tdoor fan
r u nning?
Fan motor lead
wire connector
disconnected? Go to Check No. 16 .
Positive terminal (+) of
digital multimeter
~ (2, 3) + (4) ~ (2, 3) – (1)
Negative terminal (–) of
digital multimeter
+ (4) ~ (2, 3) – (1) ~ (2, 3)
Resistance is OK. several k

~ several M

Resistance is NG. 0

or
