Manual for RAS-35FH6/RAC-35YH6

Name: Manual for RAS-35FH6/RAC-35YH6
Brand: HITACHI
Availability: InStock

Brand: HITACHI

Category: Air Conditioner

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 7:44 p.m.

Manual Publish Date: 2008-02-01

This manual provides technical information and service procedures for the HITACHI RAS-35FH6/RAC-35YH6 Room Air Conditioner.

Key sections include:

Specifications: Details on electrical, capacity, and physical dimensions.
Safety Precautions: Essential guidelines for safe handling, installation, and operation.
Operation: How to use the remote controller for various modes like Auto, Heat, Cool, Dehumidify, and Fan.
Maintenance: Procedures for cleaning air filters and front panels.
Troubleshooting: Guidance on diagnosing issues, including self-diagnosis lamp indications and common problems.
Service: Instructions for disassembly, reassembly, and checking specific components like IPM and refrigerant cycle.

It emphasizes adherence to safety protocols, proper part replacement with genuine components, and careful handling of semiconductors.

Troubleshooting and error codes

CONDITION	CHECK THE FOLLOWING POINTS
If the remote controller is not transmitting a signal. (Remote controller display is dim or blank.)	Do the batteries need replacement? Is the polarity of the inserted batteries correct?
When it does not operate.	Is the fuse all right? Is the voltage extremely high or low? Is the circuit breaker "ON"? Is the power plug inserted? Do you have any power cut?
When it does not cool well.	Is the air filter blocked with dust? Is the set temperature suitable? Have horizontal air deflectors been adjusted to their correct positions according to the operation mode selected? Are the air inlets or air outlets of indoor and outdoor units blocked? Is the fan speed "LOW" or "SILENT"?
When it does not heat well.	Is the air filter blocked with dust? Is the set temperature suitable? Have horizontal air deflectors been adjusted to their correct positions according to the operation mode selected? Are the air inlets or air outlets of indoor and outdoor units blocked? Is the fan speed "LOW" or "SILENT"?