When neither hot water nor water flows, we display error: About E25
If the plumbing that neither hot water nor water is over freezes up
When neither hot water nor water flows, freeze of the plumbing is possible.
In that case, please wait until we defrost naturally.
If water comes to flow from faucet, please use after confirming whether water does not leak out from Electric Water Heater and the neighboring plumbing.
As it causes damage of Electric Water Heater and the neighboring plumbing, parts we sprinkle hot water to hot water supply pipe, and to defrost, you are not expected.
We buy apparatus, and please consult with the purchase shop of request about the neighboring plumbing, protection construction with insulation material and thermal insulation heater for prevention of freeze for parts.
In addition, it becomes charged repair even if we meet in the case of trouble, damage by freeze during term of a guarantee.
Please let request of repair know article number of product of habitual use to yunokakorusenta or inquiry form.
Prevention of freeze and error indication: About E25
We stay to bathtub adapter and display error "E25" to remote control if there is not hot water and stop prevention of freeze driving with bathtub circulation pump. (bathtub remote control it is lukewarm and pushes switch and can cancel error when it shines and does water.)
We automatically continue intermittently using remainder hot water after bathing and circulate and prevent freeze of the bath plumbing.
- After the bath, we leave bath water without draining of water
(indications of hot water to leave in bathtub are more about 5cm or more than bathtub adapter.) - We just leave unattended
When outside temperature lowers, we operate bathtub circulation pump for prevention of freeze driving and circulate through remainder hot water of bathtub. In operation, ▶ mark displays by order forwarding to bathroom remote control. When outside temperature is low, water in bathtub, please always use in state above bathtub adapter.
When we do not set time and futsuzo shio setting the stop days, bathtub circulation pump may work for prevention of freeze driving.
Water supply, the hot water supply plumbing freezes up, and the plumbing may be damaged.
Please see instruction manual of each product about antifreeze setting in detail.
We buy apparatus, and please consult with the purchase shop of request about the neighboring plumbing, protection construction with insulation material and thermal insulation heater for prevention of freeze for parts.
In addition, it becomes charged repair even if we meet in the case of trouble, damage by freeze during term of a guarantee.
Please let request of repair know article number of product of habitual use to yunokakorusenta or inquiry form.
After checking article number of apparatus of use, please confirm.
Confirmation method of article number
- Warranty (in the space left)
- It is tablet of pasting in the Electric Water Heater tank body (the front lower right)
- Refer to the purchase shop
Article number is around ten digits of following alphanumeric characters.
Example: YU37NNBH-N01
You confirm "-" (hyphen) of article number lower than, and please confirm instruction manual (extract) of apparatus of use than the following.
Model without publication does not need setting on the Electric Water Heater side here.
Please perform the neighboring plumbing, protection for prevention of freeze for parts.
We buy apparatus, and please consult with the purchase shop of request about protection construction.
| Electric water heater | It is CB04 from CB01 | CB01_CB04.pdf |
| It is L27 from L18 | L18_L27.pdf | |
| It is MC04 from MC01 | MC01_MC04.pdf | |
| EcoCute | DG01, DG02 | DG01_DG02.pdf |
| It is HP08 from HP01 | HP01_HP08.pdf | |
| It is MG10 from MG01 | MG01_MG10.pdf | |
| It is N12 from N01 | N01_N12.pdf | |
| It is Z03 from Z01 | Z01_Z03.pdf | |
| Z04, Z05 | Z04_Z05.pdf | |
| Z06, Z07 | Z06_Z07.pdf | |
| Z08, Z09 | Z08_Z09.pdf |
Reference
Inquiry (call charge for free) with telephone
0120-911-365
[reception hours by the staff]
9:00-17:00 (from Monday to Friday)
9:00-17:00 (Saturday, us-designated holiday)
[reception hours with answering machine]
Other than time mentioned above, Sundays and holidays
Inquiry by email
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