What NO ERROR CODES Means
WHY THIS PAGE EXISTS: not every Asko dryer can show a fault code, and someone searching for the code their machine is showing deserves to be told when there is nothing to find. Four models are covered here, and in each case the absence is documented rather than assumed.
T712 AND T712C - NO FAULT REPORTING OF ANY KIND: the Use and Care Guides for both models contain no error section, no fault table and no troubleshooting chapter. The words error, fault and troubleshooting do not appear anywhere in either document. These are dial-timer dryers: a mechanical timer runs the cycle for the length of time it is set to, and there is no control board deciding anything and no display for a message to appear on. If a site publishes T712 error codes, they are not coming from Asko.
TD70A AND TD76A - NO DISPLAY AND NO CODES: the Asko Cylinda after-sales index for the TD70 to TD77 range states directly that the TD70A and TD76A carry no display and no codes. They are thermostat-controlled machines with automatic programmes running to 47 C or 60 C and a sixty-minute timer. Their siblings in the same range, the TD73A and TD77A, do have a display and do use F1 to F5 - so two models in one range report faults and two cannot.
WHAT THESE MACHINES DO INSTEAD OF REPORTING: they show their faults as behaviour. A machine that does not heat, a machine that runs its full time and leaves the load damp, a machine that stops early, a machine that will not start - on a mechanical dryer these are the whole diagnostic vocabulary, and each of them points somewhere specific for a technician.
THE ONE THING THAT DOES STOP A MECHANICAL DRYER: the overheat cut-out. The Asko Cylinda document for the range describes the chain plainly for the machines that do have a display - "Filter clogged: The overheating cutout (150 C) will operate, and the machine stops. Must be reset manually." On a machine with no display the same trip produces a dryer that simply stops and will not restart, with no explanation offered.
CLASSIFICATION: a documented absence. Knowing that the machine cannot show a code is genuinely useful, because it ends the search.
Common Causes of NO ERROR CODES
- Lint filter blocked or blinded by fabric softener film
- Exhaust duct restricted, sagging or blocked at the outside flap on a vented machine
- Overheat cut-out operated and latched, which on these machines requires a manual reset
- Thermostat or heater fault, which shows only as a lack of heat
- Timer or motor fault, which shows only as the machine not running or stopping early
- Supply to the dryer circuit interrupted at the breaker or the outlet
🔧 One Safe Check You Can Try
If a machine of this kind has stopped or stopped heating, describe what it does rather than look for a code, because the behaviour is the diagnosis. With the dryer switched off and cool, clean the lint filter thoroughly - washed, not just picked clean - and on a vented machine check the exhaust duct along its run for crushing, sagging, packed lint or a flap outside that does not open. Restricted airflow is by far the most common reason a mechanical dryer stops or dries badly, and it is the condition that operates the overheat cut-out. Then check the obvious supply items: the breaker for the dryer circuit at the panel, and whether anything else on the same circuit is affected. Reset a tripped breaker once at the panel; if it trips again, leave it off. Then run a short timed programme and note precisely what happens - whether the drum turns, whether there is any warmth at all, how long it runs before stopping, and whether the machine will restart afterwards. Those notes do for a technician what a fault code would have done. Do not look for the overheat cut-out to reset it: it is inside the cabinet next to the heater, its reset is a manual one for a technician, and resetting it without finding out why it operated puts the heater straight back into the conditions that tripped it.
⚠ Why You Shouldn't Go Further Than That
- The overheat cut-out sits inside the cabinet beside the heater and its wiring, which is live whenever the machine is connected to power, so the reset is not an owner task.
- Resetting a cut-out without correcting the airflow that tripped it returns the heater to the same conditions, in a cabinet that contains lint.
- A mechanical dryer has no diagnostic to read out, so the only way to narrow the fault is measurement inside the machine with it isolated, which is technician work.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.