Unit installation

TROUBLESHOOTING
P33 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
LIMITED PRODUCT WARRANTY POLICIES
P34 OF 38
USER NOTES AND SERVICE LOG
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
36
Overload normal works, compressor
running frequency declines
Whole unit break for 30mins and
discharge, to check the outdoor
control board API's IPM module
coolant whether is short, the radiator
is tightened. If above phenomenon
is not ok, please improve or replace
the control board API
EU
IPM temp. is
too high limit/
decrease
frequency
37
Four-way
valve
abnormal
U7
This malfunction happened, only in
heating mode, all will stop to run
1) Power supply voltage is lower
than AC175V
2) Wire terminal 4V loosen or wire
break
3) 4V damaged, replace 4V
38
39
U9
Outdoor unit
zero-cross
detecting error
Cooling: compressor will stop,
indoor fan motor works.
Heating: all will stop
Replace the outdoor control board
APl
Anti-freezing
limit/decrease
frequency
All loads work normally but the
running frequency limited or
decrease
FH
Indoor unit air return is poor or fan
speed is too low
YMGI Group (YMGI) products are designed and manufactured free from defects in workmanship and
materials for normal use and maintenance. YMGI products are designed and manufactured to the qualities
to keep installer(s) and user(s) from any trouble and to bring total comfort to unit(s) owner(s) and end user(s).
LIMITED PRODUCT WARRANTY
POLICIES
YMGI warrants its products against any unexpected issues occurred to product itself, though designed and
manufactured and expected to work much longer than the warranted period, only if system is installed by
currently licensed HVAC contractor, as follows:
1. Five-year compressor and sealed system
2. One-year other parts
3. Ground shipping only
Above warranties valid only if all the following are satisfied:
1. The unit was installed by licensed HVAC technician(s) of state certified or licensed contractor(s) only.
2. The unit is installed per national and local codes.
3. The unit is installed following installation instruction coming with YMGI products.
4. The unit is fully checked and tested by installer(s) to make sure installed unit functions as expected.
5. Correct and proper operation of the unit is explained clearly to the owner(s) by installer(s).
6. All fields are filled or checked, signed and dated by both installer(s) and owner(s) on the LIMITED PRODUCT WARRANTY
REGISTRATION CARD on the other side of this page.
7. Registration card must be mailed within 7 calendar days after the original installation is finished or your
NEW home (unit is not checked or used yet) is closed, whichever comes later, by the owner(s) to YMGI Warranty Registration, POB
1559, O,fallon MO 63366.
8. A full copy of warranty registration card must be kept by owner(s) safely along with other documents that come with the product.
No warranty may be valid if any one of above 8 conditions is not fulfilled.
Warranty begins on the date of the original installation or the date of NEW home (unit is not checked
or used yet) is closed, whichever comes later.
As its only responsibility, and your only remedy, YMGI will furnish replacement part, without charge for the
PART(S) and Ground Shipping ONLY, to replace any part found to be defective due to manufacture
workmanship or materials under normal use and maintenance.
Any part replaced pursuant to this warranty is warranted only for the unexpired portion of the warranty term
applying to the original part. These warranties do NOT apply to any other cost associated with the service,
replacement or operation of the product.
For warranty credit, product(s) or part(s) must be reviewed by YMGI’s distributor(s) / contractors
and then YMGI service center(s). In case no distributor(s) or service center(s) available in the area where
unit is installed, owner(s) need to contact YMGI for assistance before further action is to be taken. YMGI is
the only one to approve/honor warranty claiming.
Warranty policy herein DOESN’T cover:
1. Any damage or repairs to properties and person(s) as an incident or consequence of Custorner do it yourself (DIY) installation, faulty or
improper installation, operation, maintenance, or service that ISN’T physically performed by YMGI.
2. Any damage caused by frozen or broken water pipes in the event of equipment failure.
3. Any damage as a result of floods, fires, winds, lightning, accidents, corrosive atmosphere or other conditions beyond the control of
YMGI.
4. Any damage resulted from use of components or accessories not specified, supplied or designated by YMGI.
5. Any damage because of failure to start due to interruption and/or inadequate electrical service.
6. Any products sold or installed outside the United States or Canada.
Any damage due to service performed by third parties, it is the product receivers(s) or owner(s)’s
responsibility to claim such damage resulted from these activities to the responsible party:
1. Transportation, installation and operation.
2. Normal maintenance and service as described in the installation and operating manual, such as cleaning of the coils, filter, cleaning
and/or replacement and lubrication.
YMGI keeps on product improvement and such improvement is purposed to further benefit installers, owners,
users and others. Such improvement or changes, even without notice, including but not limited to
specifications, functions, appearance, sizes, packages or others, of the products are YMGI’s sole right(s).
These improvement or changes will not invalidate the limited warranty stated herein.
For further information about this warranty, contact YMGI Warranty Registration