599489
26
Zoom out
Zoom in
Previous page
1/40
Next page
26
CCCheck of R.V. coil
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
1. Disconnect the lead wire leading to the compressor.
2. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION in HEAT mode.
Is there voltage of 230V AC between pin1 and
pin 2 at connector CN912? W
Turn off power supply of indoor and outdoor unit.
1. Turn off power supply of indoor and outdoor unit, and
disconnect the connector CN781 in the outdoor electronic
control P.C. board.
2. 3 minutes after turning on the power supply, start
EMERGENCY OPERATION in HEAT mode.
Replace the 4-way valve. Replace the noise filter P.C. board.
Replace the R.V. coil.
Is there voltage 12V DC
between the connector CN781
pin 5 (+) and pin 3 (-)?
Replace the electronic
control P.C. board.
Disconnect the connector
CN912 in noise filter P. C.
board. Is there normal
resistance to R.V. coil?
1. Disconnect the lead wire leading to the compressor.
2. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION in COOL mode.
Is there voltage of 230V AC between pin1 and
pin 2 at connector CN912? W
1. Turn off power supply of indoor and outdoor unit, and
disconnect the connector CN781 in the outdoor electronic
control P.C. board.
2. 3 minutes after turning on the power supply, start
EMERGENCY OPERATION in COOL mode.
Replace the 4-way valve.
Replace the noise filter P.C. board.
Is there voltage 12V DC
between the connector CN781
pin 5 (+) and pin 3 (-)?
Replace the outdoor electronic control P.C. board.
WIf the connector CN912 is
not connected or R.V. coil
is open, voltage occurs
between terminals even
when the control is OFF.
• When heating operation does not work.
• When cooling operation does not work.
The cooling operation or heating operation does not operate. (LED display: Both LED1 and LED2 lighting)
OB455A--1qxq 06.7.31 2:19 PM Page 26
Downloaded from www.Manualslib.com manuals search engine
26


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Mitsubishi MUZ-GB50VA at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Mitsubishi MUZ-GB50VA in the language / languages: English as an attachment in your email.

The manual is 3,64 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info