Winter heating problems can quickly lead to guest complaints and costly repairs. Following a thorough Hotel HVAC Winter Maintenance Checklist allows hotel maintenance teams to spot issues before they become major disruptions. For hotels using commercial air conditioning Gold Coast systems, DEEPCHILL has prepared this useful guide for you!
Table of contents
A commercial air conditioning checklist for hotel maintenance team
Test the heating cycle early first in winter AC maintenance checklist
The best time to test your heating system is during autumn, before temperatures begin to drop. Switch each indoor unit to heating mode and observe how it performs.
The system should reach the set temperature within a reasonable timeframe and deliver consistent airflow through all vents. Testing early gives your team time to identify and fix issues before they affect guest comfort.
Check thermostat accuracy when doing winter AC maintenance checklist
An incorrectly calibrated thermostat can make rooms feel too hot or too cold, even when the system appears to be working normally.
Compare thermostat readings with the actual room temperature and make adjustments where needed. Small inaccuracies can increase energy use and place unnecessary strain on the system in commercial heating checklist.
Listen for unusual noises when fan directions reverse
VRV and VRF systems often make minor sounds when switching between cooling and heating modes. A brief pause in airflow or a soft “whoosh” sound is generally normal.
However, maintenance teams should pay attention to any unusual noises, including:
- Rattling sounds, which may indicate loose mounting components or an uneven outdoor unit
- Grinding noises, which can point to fan or motor issues
- Chattering or stuttering sounds during valve reversal, which may suggest a failing solenoid
Clean filters and air grilles
Blocked filters are one of the most common causes of restricted airflow and poor system performance.
As part of your hotel HVAC maintenance checklist, clean or replace air filters and remove dust buildup from return air grilles. This simple task helps improve efficiency, maintain airflow, and reduce the risk of overheating.

Warning signs that require professional HVAC support
Error codes on the system
If error codes appear on your VRV or VRF controller, avoid simply resetting the system and hoping the issue disappears. Codes related to refrigerant shortages, pressure protection, or compressor faults often indicate underlying problems that require professional diagnosis and repair.
Burning or electrical smells
A burning smell should always be treated as a serious warning sign. If you notice the smell of burning plastic, electrical wiring or any unusual odour coming from the system, switch it off at the main breaker and contact an HVAC specialist immediately.
Other signs to watch for
- Hissing sounds that may indicate refrigerant leaks
- Ice forming on coils
- Sudden increases in energy consumption
- Reduced heating performance despite normal thermostat settings

Keep your hotel ready for winter with DEEPCHILL
For added peace of mind, consider booking DEEPCHILL’s preventative maintenance + hydro clean package. While standard servicing focuses on visible components, hydro clean provides a deep clean of the evaporator coils, removing hidden dust, mould, bacteria, and debris that regular cleaning can miss.
With more than 40 years of industry experience on the Gold Coast, DEEPCHILL supports hotels with reliable HVAC maintenance solutions that help prevent costly winter breakdowns. Contact DEEPCHILL today to schedule your winter maintenance and keep your rooms comfortable, occupied, and ready for every guest!











